Patent · US Expired

Photoelectric line follower

US4081671A · kind A · utility

4Cited by

3References

4Claims

0Family size

Assignee

Messer Griesheim GmbH · DE

Inventors

Dietrich Bohme
Gunter Schumann · Radebeul, DE
Günter Hähn · Rübhausen, DE
Rolf Jung · Trier, DE

Key dates

Filing date	Aug 5, 1976
Grant date	Mar 28, 1978
Priority date	—
Expiry date	Aug 5, 1996

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23Q35/128
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An arrangement for cutting workpieces with a scanning device having a signalling photoresistor which detects markings, with an attached control device which contains a first timing element to which a switch for reducing the rate of speed is connected includes an OR-element connected between the first timing element and the switch with a further timing element connected by means of an AND-element to the input and output of the timing element with the input of the further timing element being connected to the output of the AND-element and the output of the further timing element being operationally connected to the input of the OR-element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.